TGOlson

#Question 4: Intersection
def intersection(range1, range2)

  # range1 is range1.min, range2.min - add in 'maxes' if range1 encompasses range2
  r1_only = [range1[0], range2[0]]
  r1_only << [range2[1], range1[1]] if range1[1] > range2[1] 
 
  # both occurs at range1.max, range2.min if overlap - both = range2 if encompass - nil if no overlap
  both = [range2[0], range1[1]] if range1[1] < range2[1]
  both = range2 if range1[1] > range2[1]

TGOlson

# Generates morse code based on input. Splits string and uses a morse code hash to convert letters.
# morse_encode("q").should == "--.-"
# morse_encode("cat").should == "-.-. .- -"
# morse_encode("CAT in hat").should == "-.-. .- -  .. -.  .... .- -"

def morse_encode(str)
  string_split = str.downcase.split(' ')
  coded_words = string_split.map {|wrd| morse_encode_word(wrd)}
  coded_words.join('  ')
end

TGOlson

# Takes an array, and uses the bubble sort method to return a sorted array.
# bubble_sort([]) # .should == []
# bubble_sort([1]) # .should == [1]
# bubble_sort([5, 4, 3, 2, 1]) # .should == [1, 2, 3, 4, 5]

def bubble_sort(arr)
  sorted = false

  while !sorted
    out_of_place = 0

TGOlson

def create_file(file)
  target = File.open(file,'a+')
  puts "#{file} created."
end

def read_file(file)
  target = File.open(file,'r')
  puts "That file is:"
  puts target.read
end

TGOlson

movies = {
    Iron_Man: 3,
    Fast_Five: 4,
    Sharknado: 5
}

puts 'Do you want to ADD, UPDATE, DISPLAY, or DELETE?'
choice = gets.chomp.downcase

case choice

TGOlson

# version 1 of 2
# uses while loop and modifies array during looping (an example of what not to do)
# see version 2 here - https://gist.github.com/TGOlson/6218116

class RPNCalculator

  def evaluate(string)
    array = string.split
    i = 0
    while i < array.length

TGOlson

# version 2 of 2
# updated to handle negative numbers, removed while loop, and uses send method

class RPNCalculator

  def evaluate(string)
    array = string.split
    output = []

    array.each do |x|

TGOlson

def get_input
  puts "Type a word to find matches."
  print '> '
  base_word = gets.chomp
  scan_dictionary(base_word)
end


def scan_dictionary(word)
  matches = read_dictionary.select { |line| line.include?(word.downcase) }

TGOlson

48245
0/nm
0th/pt
1/n1
1st/p
1th/tc
2/nm
2nd/p
2th/tc
3/nm

TGOlson

desc "load all files in app/models to irb"
task :console do
  file_list = Dir[File.dirname(__FILE__) + "/app/models/*.rb"].map { |f| "-r #{f}" }
  exec "irb #{file_list.join(' ')}"
end
 
 

desc "generate new migration file"
task :generate do